Hydraulic transmission



L. I. H UGUES. HYDRAULIC TRANSMISSION.

\ APPLICATION FILED DEC. 20, I919. 1,396,756. Patented Nov. 15 1921 3SHEETS-SHEET I.

WITNESS: INVENTOR.

ATTORNEY.

L. J. HUGUES. HYDRAULIC TRANSMISSION. "APPLICATION FILED DEC. 20, 1919.

Patented Nov. 15, 1921.

3 SHEETS SHEET 2.

WI TNESS:

L1 HUGUES. HYDRAULIC TRANSMISSION. APPLICATION H1211 111302 0; 1919.

'1 Patented Nov. 15,1921.

3 SHEETS-SHEET 3. 1

W ITNESS: 1 'INVENTOR. r

@4 1 M l' fl M ATTORNEY. 1'

UNITED STATES PATENT orrlcs.

Louis .1. access, or women's; Kansas, Assmnon or one-HAL]? r o. r.manco'r'rn,

. or 'rornxa, KANSAS.

' HYDRAULIC TnANsmIss-ioiv.

To all ev hom it my,mmit.-.-

Be it known that ,1, Louis J. Hueons, a

citizen 'of. the United States, residing at Topeka, in the county ofShawnee and State of.Kansas, have invented new and useful Improvementsin Hydrauhc Transmlssion,

of which the followingis a'specification.

This invention relates to tI'HJlSl'l'llSSlOIl means particularly adaptedfor automobiles for transmitting the motion of the drive shaft tothe-driven shaft. 4

The principal object of the invention is to provide means for entrappinga substantially w'edgeeshaped body of fluid between the driving memberand the driven member so that the motion of the said driving member willbe imparted to the driven member Another object of'the invention is topro.

vide lmeansfor' controlling the escape of fluid from betWeen saidmembers so as to impart different speeds to the driven memher while thedriving member is actuating other features of construet ion'and' in thedrawings wherein like characters denote like or corresponding partsthroughout the several views, a-nd'in wh1chz- Figure 1 is a longitudinalsectional view openings 16 m the walls of the cyllnder,

. of the invention.

Fig. 2 is a cross section on line 2-2-of Fig. 1.

Fig.3 is a section on line 3-3 of Fig. 1.

Fig. 4 is a section on line 4-4 of Fig. 1.

Fig. 5 is a view of the sliding sleeve or controlling member.

Fig. 6 is a detail view.

In these views 1 lndic ates' the easing which is formed of two partsconnected to gether by the bolts 2. The ends of this casing are providedwith thebosses 3, through one of which passes the driving shaftt andthrough the other the driven shaft5. This driving shaft, within thecasing, carries the abutments 6 and the driven shaft'5 has securedthereto, or formed therewith, the cylinder. 7 which incloses saidabutment-s.

'seen the rin f Specificationof Letters iatent. Patented NOV, 15, 1921,V Application filed December 20; 1919. Seria1 No.346, 255..-

Theend of this cylinder is closed by the cover 8" which is provided withthe central opening 9 to receive the shaft 4; The end of shaft 4 fitswithin a-recess 10 formed within the shaft 5 at the point of junctionwithsaid shaft. It will thus be seen" that the shaft formed with itsabutments may have rotary members 1'3 bridge the chambers formed by sa deccentrics 11 and each. ring member is provided with an opening 1 1through which one ofthe abutments passes. Thus as the shaft andabutments rotate the ring members 13 will be rotated with them. Aswill-be members 13 are in contact with a part of t e-cylinder so that astheabutments reach this point of the cylinder, said abutments will havetheir ends flush with the walls of the ring members or in other wordssaid abutments'will be entirelywithin said ring members. 4 Upon thecontinued rotation of the parts the abutments will gradually projectfrom the ring members and. sweep around the chambers and said abutmentsand ringmembers will divide the chambers into two parts which areentirely separated from each other as soon as the abutments pass out ofthe ring members.

I provide outlet openings 15 and inlet chambers and being .locatedadjacent the points of contact of the ring members with the cylinder.

rated from the outlet'openings by said ring members so that the fluidmust pass around .the' ring members to get to the outlet open- The inletopenings. are sepaings.

In order to control these ports or openmgs I provide a sllde sleeve 17'which embraces the cylinder and is provided with outlet ports 18 and 19for coiiperati'ng with the outletports 15 of the cylinder and with anelongated inlet port 20 for cooperating with the inlet ports 16 of saidcylinder.

This sleeve is provided with a. pair of spaced flanges 21 ;which receivethe rollers 22 carried by the ends of the yoke 23, the stem24 of thisyoke passing through a suitable stuffing box in the end of the casing.

In this way the sleeve may be adjusted in position on the cylinder tocontrol the passage of fluid through the ports.

It will be understood that the fluid in the casing is under pressure sothat it will Pass into the cylinder when the ports are opened. Thecasing is provided with a pressure valve 25 and admin plug 26. Springcontrolled pressure-rings 27 prevent leakage at the bosses.

When the ports are opened and the drive shaft is being rotated the fluidwill pass into the cylinder through the inlet ports and will be carriedaround by the abutment to the opposite side of the cylinder where itwill flow from the outlet ports. If the outlet ports are restricted orentirely closed by the sliding sleeve the body of fluid in front of theabutment will assume a substantially wedgeshape between the ring members13 and the walls of the cylinder so that said cylinder will be causedto.rotate with the shaft and abutments. By adjusting the size of theoutlet ports by the sliding sleeve various speeds may be given to thecylinder without changing the speed of the drive shaft. If the outletports are entirely closed the cylinder will be rotated at the same speedas the drive shaft and in order to prevent the heating of the fluidunder the continuous pressure I provide means for locking the cylinderto the drive shaft when the two parts are to rotate asone. Such meansconsists of a slidable member 28 having an offset part 29 provided witha curved face and an inclined face. The curved face is adapted to engagewith an eccentric 30 formed on the end of the shaftt and the inclined.face

is engaged by the inclined end of a longi-- tudinallymovable lever 31.which has its upper end provided with a neck 32 which engages a slot 33formed in the sleeve 17. The part of the sleeve in which the slot 33 isformed is inclined so that as the slide is 1 28 and 31 are held 1nposition against the end of thecylinder by the ring 34:. When the curvedface of member 28 is held in engagement with the eccentric on the shaftthe cylinder is locked'to the shaft and the two parts are rotated asone.

In order to reverse the rotation of the cylinder I provide an annularrack 35 on the cover 8 and a gear 36 on shaft 4 and a sliding gear 37,mounted on a pin 38, carrled by the casing, is adapted to mesh with saidgear 36 of'the rack and in this way rotate the cylinder in the reversedirection.

This gear 37 is moved into and out of operative position by means of therod 39 having its bent end engaging a groove e10 in the gear.

In this way the cylinder and its shaft may be rotated at various speedsby the drive shaft by the adjustment of the sliding sleeve 17 When thetwo parts are to be driven at the same speed they are locked together bymoving the sliding sleeve to its inner position and when the automobileis to be reversed the rod 39 is moved to bring the gear 37 into meshwith the gear 36 and rack 35.

It is thought from the foregoing description that the advantages andnovel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the constructionand in the combination and arrangement of the several parts, providedthat such changes fall 1 within the scope of .the appended claims.

hat I claim is 1. An apparatus of the class described comprising adriving shaft. an abutment thereon, a driven shaft. a cylinder thereonment and acting with the abutment to divide the cylinder into two partsduring a. part of the rotation of the abutment.

2. An apparatus of the class described comprising a casing containingfluid under pressure, a drive shaft having one end proj ecting into saidcasing, an abutment on said shaft, a driven shaft projecting into saidcasing, a cylinder on said driven shaft and surrounding the drivingshaft and its abutment, eccentric rings secured to the walls of thecylinder and spaced apart to form an annular chamber to receive theabutment, a ring member rotatably supported by said eccentric rings andhaving an opening time in for the abutment and means for controlling thepassage of fluid from said chamber.

3. An apparatus of the class described comprising a casing containirfluid under pressure, a drive shaft havn or c and proectlng into saidcasing, an ucnt on said shaft, a driven shaft pro cctng; into saldcasing. a cylinder on said driven shaft and surrounding the drivingshaft and its abutment, eccentric rings secured to the walls of thecylinder and spaced apart to form an annular chamber to receive theabutment, a

ring member rotatably supported by said eccentric rings and having anopening there in for the abutment and adjustable means for controllingthe passage of fluid from said chamber.

"4. An apparatus of the class described taining fluid under pressure, aring member ec'cen'trically and rotatably mounted in the cylinder andsurroundinrr the driving shaft and having an opening thereinfor the abutment, said cylinder having ports therein and means for controlling thepassage of fluid throu h said ports.

5'. -n apparatus of the class described comprising a drive shaft havingan abutment thereon, a driven shaft, a cylinder,

carried by the driven shaft and receiving the abutment, aring memberwithin the cylinder and'eccentrically and rotatably arranged therein andhaving an opening for receiving the abutment, said member contactingwith a part of the inner wall of the cylinder, said cylinder having aport therein on each side of said member and an adjust able sleeve forcontrolling said ports.

6. An apparatus of theclass described comprising a driving shaft, adriven shaft, a cylinder carried by the driven shaft, abutments on thedriving shaft Within the cylinder, a casing surrounding said parts andadapted to receive fluid under pressure, cam rings secured to the wallsof" the cylinder and spaced apart to form annular chambers for theabutments, ring shaped members rotatably supported by vsaid cam ringsand bridging the chambers and having openings therein for receiving theabutments, said cylinder having ports therein for leading the fluidtothe chambers and means for controlling the outlet ports.

7. An apparatus of the class described comprising a. drive shaft, anabutment thereon, a driven shaft, a cylinder carried by the driven shaftand receiving the abutment, a ring -member eccentrically and rotatablymounted in the cylinder and having an opening therein receiving theabutment, said cylinder having ports therein, a casing surrounding theparts and containing fluid under pressure, means. for controlling theoutlet ports and means for 1ocking the cylinder to ,thedriving shaft 8.An apparatus of the class described comprising a driving shaft, anabutment tlie1'eon, a-drivens aft, a. cylinder connected therewith andreceiving the abutment, a casing surrounding the parts and receivingfluid under pressure, a ring member eccentrically and rotatably mountedin the cylin der and Having an opening receiving the abutment, saidcylinder having portsth'erein, a sliding sleeve for-controlling the(outlet ports, means controlled the movement of the sleeve for lockingthe cylinder to the driving shaft-and means for adjusting said sleeve.

' LOUIS J. HUGUES.

Witness: 7 l D.'KEssELRINc;

